ext4: fix warning in ext4_da_update_reserve_space()

[firefly-linux-kernel-4.4.55.git] / fs / ext4 / mballoc.c

diff --git a/fs/ext4/mballoc.c b/fs/ext4/mballoc.c
index 162b80d527a04b62e5e0ce5e13bb6d3aa95ef5f5..df5050f9080b06e1400e904373c284ae4aca63cd 100644 (file)
--- a/fs/ext4/mballoc.c
+++ b/fs/ext4/mballoc.c
@@ -4610,6 +4610,7 @@ void ext4_free_blocks(handle_t *handle, struct inode *inode,
        struct buffer_head *gd_bh;
        ext4_group_t block_group;
        struct ext4_sb_info *sbi;
+       struct ext4_inode_info *ei = EXT4_I(inode);
        struct ext4_buddy e4b;
        unsigned int count_clusters;
        int err = 0;
@@ -4808,7 +4809,6 @@ do_more:
        ext4_block_bitmap_csum_set(sb, block_group, gdp, bitmap_bh);
        ext4_group_desc_csum_set(sb, block_group, gdp);
        ext4_unlock_group(sb, block_group);
-       percpu_counter_add(&sbi->s_freeclusters_counter, count_clusters);
 
        if (sbi->s_log_groups_per_flex) {
                ext4_group_t flex_group = ext4_flex_group(sbi, block_group);
@@ -4816,10 +4816,23 @@ do_more:
                             &sbi->s_flex_groups[flex_group].free_clusters);
        }
 
-       ext4_mb_unload_buddy(&e4b);
-
-       if (!(flags & EXT4_FREE_BLOCKS_NO_QUOT_UPDATE))
+       if (flags & EXT4_FREE_BLOCKS_RESERVE && ei->i_reserved_data_blocks) {
+               percpu_counter_add(&sbi->s_dirtyclusters_counter,
+                                  count_clusters);
+               spin_lock(&ei->i_block_reservation_lock);
+               if (flags & EXT4_FREE_BLOCKS_METADATA)
+                       ei->i_reserved_meta_blocks += count_clusters;
+               else
+                       ei->i_reserved_data_blocks += count_clusters;
+               spin_unlock(&ei->i_block_reservation_lock);
+               if (!(flags & EXT4_FREE_BLOCKS_NO_QUOT_UPDATE))
+                       dquot_reclaim_block(inode,
+                                       EXT4_C2B(sbi, count_clusters));
+       } else if (!(flags & EXT4_FREE_BLOCKS_NO_QUOT_UPDATE))
                dquot_free_block(inode, EXT4_C2B(sbi, count_clusters));
+       percpu_counter_add(&sbi->s_freeclusters_counter, count_clusters);
+
+       ext4_mb_unload_buddy(&e4b);
 
        /* We dirtied the bitmap block */
        BUFFER_TRACE(bitmap_bh, "dirtied bitmap block");